- Flash access (MTD/JFFS)
- I2C through GPIO on IXP42x
- GPIO for input/output/interrupts
- See include/asm-arm/arch-ixp4xx/platform.h for access functions.
+ See arch/arm/mach-ixp4xx/include/mach/platform.h for access functions.
- Timers (watchdog, OS)
The following components of the chips are not supported by Linux and